Overview
The LM293PT, produced by STMicroelectronics, is a low-power dual voltage comparator. This component is part of the LM293 series, which includes two independent low voltage comparators designed to operate from a single supply over a wide range of voltages or from dual supplies. The LM293PT is particularly suited for applications requiring low power consumption and high reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2 V to 36 V or ±1 V to ±18 V | V |
| Total Supply Current (at 5 V) | 0.45 mA | mA |
| Input Bias Current | 20 nA (typ.) | nA |
| Input Offset Current | ±3 nA (typ.) | nA |
| Input Offset Voltage | ±1 mV (typ.) | mV |
| Output Saturation Voltage | 80 mV (typ. at Isink = 4 mA) | mV |
| Input Common-Mode Voltage Range | Includes ground | - |
| Differential Input Voltage Range | Equal to the supply voltage | - |
| Output Compatibility | TTL, DTL, ECL, MOS, CMOS | - |
| Package Type | TSSOP-8L | - |
| Operating Temperature Range | -40°C to 85°C | °C |
| ESD Protection | 2 kV HBM (for LM393W, but not specified for LM293PT) | V |
Key Features
- Wide single-supply voltage range or dual supplies: 2 V to 36 V or ±1 V to ±18 V
- Very low supply current (0.45 mA) independent of supply voltage
- Low input bias current: 20 nA typ.
- Low input offset current: ±3 nA typ.
- Low input offset voltage: ±1 mV typ.
- Input common-mode voltage range includes ground
- Low output saturation voltage: 80 mV typ. (Isink = 4 mA)
- Differential input voltage range equal to the supply voltage
- Output compatible with TTL, DTL, ECL, MOS, CMOS
- Available in TSSOP-8L package
Applications
The LM293PT is versatile and can be used in a variety of applications, including:
- Voltage monitoring and detection circuits
- Threshold detectors
- Window comparators
- Automotive and industrial control systems
- Medical devices requiring low power consumption
- Consumer electronics where low power and high reliability are crucial
Q & A
- What is the supply voltage range for the LM293PT?
The LM293PT can operate from a single supply voltage ranging from 2 V to 36 V or from dual supplies ranging from ±1 V to ±18 V.
- What is the typical supply current of the LM293PT?
The typical supply current is 0.45 mA, which is independent of the supply voltage.
- What is the input bias current of the LM293PT?
The input bias current is typically 20 nA.
- Is the output of the LM293PT compatible with other logic families?
- What is the operating temperature range of the LM293PT?
The operating temperature range is -40°C to 85°C.
- In what package is the LM293PT available?
The LM293PT is available in a TSSOP-8L package.
- Does the LM293PT have ESD protection?
While the LM393W version has 2 kV HBM ESD protection, this is not specifically mentioned for the LM293PT.
- What is the differential input voltage range of the LM293PT?
The differential input voltage range is equal to the supply voltage.
- Can the LM293PT operate with a single supply voltage that includes ground in its common-mode input voltage range?
- What is the typical output saturation voltage of the LM293PT?
The typical output saturation voltage is 80 mV at Isink = 4 mA.
